Which labeled cell in the diagram is a WBC?
a) A
b) B
c) C
d) Both B and C
e) All of these choices
c
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What is a murmur called when it occurs between the first and the second heart sounds?
a. SA murmur b. atrial murmur c. ventricular murmur d. diastolic murmur e. systolic murmur
The process of recycling cellular proteins that had been released by exocytosis and brought back into the cell is called ________.
A. autophagy B. retrograde transport C. active transport D. mediated transport
Natural killer cells
A. only attack bacteria. B. are activated by IL-2 and interferon-gamma. C. cannot interact with antibodies. D. secrete interferon-gamma to activate helper T-cells. E. have primary responsibility for mass-manufacturing antibodies against foreign antigens.
The term "physiology" is related to
A. the structure of internal organs. B. the Latin for "physical shape." C. the Greek for "cutting up." D. the Greek for "relationship to nature."